Jena is surrounded by limestone slopes about 400 m high, botanical and geological features ,amongst which are 40 types of orchids. Jena is also famous for the Optical Museum.

Luxembourg, a small yet influential country in the heart of Europe, offers visitors a rich blend of historic sites and contemporary culture. The capital city, Luxembourg City, is famous for its dramatic cliffs and ancient fortifications that have earned it a UNESCO World Heritage status. Walking through the old quarters, visitors can explore the casemates that reveal layers of the city’s military past.

Cameroon is often called “Africa in miniature” for good reason. Within its borders, travelers can explore coastal beaches, dense rainforests, vast savannas, active volcanoes, and snow-capped peaks, all without crossing a border. The country’s most iconic landmark, Mount Cameroon, is the highest mountain in West Africa and an active volcano that draws hikers from around the world.

Gamboa, Panama, was originally built to house employees of the Panama canal. The small town's main attractions are its proximity to significant tracts of relatively undisturbed rainforest, and Pipeline Road, considered one of the best bird watching sites in Central America.

Colombo, the commercial capital of Sri Lanka, is a vibrant city where colonial architecture meets modern skyscrapers. Visitors can explore historic sites such as the Gangaramaya Temple, the Dutch Hospital, and the Colombo National Museum, which reflect the city’s rich cultural heritage and diverse history.